Certainty Turf Herbicide
Certainty Turf Herbicide Certainty Turf Herbicide

Certainty Turf Herbicide

MONSANTO

Certainty Turf Herbicide

Certainty Turf Herbicide is a effective selective, post-emergent herbicide that can treat a broad label of weeds, especially against nutsedge and dallisgrass in warm-seasoned turf and ornamentals.
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Certainty Turf Herbicide, manufactured by Monsanto, is an excellent selective, post-emergent herbicide containing the active ingredient Sulfosulfuron. Certainty Herbicide is easy to use and has a broad label for grass and broadleaf weeds.

This easy to use water dispensable granule offers dependable control over hard-to-manage weeds through the active ingredient sulfosulfuron 75%, combined with its ability to be applied in a variety of seasons to turf without harm. Its flexibility is further seen with its ability to be applied directly or over the top to newly seeded turf or established ornamentals. 

Certainty Turf Herbicide is an ideal herbicide to quickly eliminating weeds in warm-seasoned turf, resulting in the successful removal of unwanted cool-seasoned turfgrass such as fescue, perennial ryegrass, Poa annua, and poa trivialis.

Tools Needed

To use Certainty Turf Herbicide, you will need to mix the product into a sprayer of your choosing such as a backpack or hand-pump sprayer. For the average job, a hand-pump gallon sprayer works best.

How to Use

Selective Herbicide

  • Step 1: Determine how much Certainty Turf Herbicide to use by measuring the square footage of the treatment site. To do this, measure the length and width of the treatment site in feet and multiply (length x width = square footage). For acreage, take the square footage and divide it by one acre (square footage / 43,560 = acre). A general application of Certainty Turf Herbicide will use 1.25 oz. of product (equivalent to 5 small (0.16 gram) scoops) per 10 to 15 gallons of water per acre. For smaller treatment areas, use 0.75 oz. (equivalent to 1 large (0.8 gram) scoop) per 3 gallons of water per 1,000 sq. ft. The combined total of all treatments must not exceed 2.66 oz. of this product per acre per year.
  • Step 2: In a sprayer of your choice, fill the sprayer 3/4ths of the way with water and add the appropriate amount of Certainty Turf Herbicide needed for your application. Fill the sprayer the rest of the way with water, close the lid and shake the sprayer well to ensure it is mixed. Once mixed, you can add and mix in a nonionic surfactant to enhance the product (at a rate of 2 teaspoons or 1/3rd fl. oz. per gallon of water).
  • Step 3: Spot treat or spray the target areas, preferably with the sprayer on a fan spray setting for uniform coverage. Monitor the weeds and conduct a follow-up application of Certainty Turf Herbicide as needed after 1 to 2 weeks to achieve complete control.

Where to Use

Certainty Herbicide can be applied to labeled weeds on highly managed turf, native grasses, landscaped areas and ornamental nurseries. This product may be applied to residential and commercial sites, including apartment complexes, athletic fields, cemeteries, golf course fairways, golf course roughs, golf course tees, and other golf course areas, hotel properties, nurseries, office complexes, parks, public areas, retail sites, storage facilities, school grounds, sod and turfgrass seed farms, and other highly managed turfgrass sites.

This product is not for use on golf course putting greens.

When to Use

Certainty Turf Herbicide should be sprayed when weeds are small and actively growing early in the season. Make sure not to disturb areas with mowing at least 2 days before or 2 days after application.

Safety Information

Certainty Turf Herbicide is safe to use around children and kids when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when handling or applying this product.

Keep people and pets off treated areas until spray solution has dried.

Special Considerations

Heavy rainfall within 2 hours of application may wash this product off of treated foliage and may result in having to do a repeat application to achieve control.

AvailabilityOnline
Restricted UseNo
Shipping Restrictions1.25 Ounce: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA
BrandMONSANTO
Keith's Pro Tips"Spray Certainty Turf Herbicide early in the morning and scan the yard to focus treatments on weed hot spots rather than doing a full broadcast spraying to reduce wasting product.."
Product DrawbacksCertainty Herbicide may require repeated agitation while spraying.
Target PestsCertainty Turf Herbicide is a selective herbicide that controls the following: American, Annual, Applications, Arborvitae, Asiatic, Azalea, Barley, Bedstraw, Big, Blue, Bluegrass, Bougainvillea, Boxwood, Bulbous, Burning, Burweed, Bush, Buttercup, Carolina, Catchweed, Chickweed, Chinese, Clover, Common, Cranberrybush, Creeping, Crowfootgrass, Dandelion, Dwarf, English, Euonymus, False, Field, Forsythia, Fragrant, Fraser, Gardenia, Garlic, Geranium, Globe, Golden, Goldmound, Grass, Greater, Green, Ground, Henbit, Holly, Hydrangea, Ivy, Japanese, Jasmine, Johnsongrass, Juniper, Korean, Kyllinga, Lawn, Lilac, Little, Mockorange, Mondo, Monkey, Mountain, Mugo, Mustard, Ninebark, Nutsedge, Oine, Oleander, Panicled, Pennycress, Perennial, Periwinkle, Photinia, Pine, Prague, Preplant, Privet, Purple, Quackgrass, Redbud, Rhododendron, Rosemary, Roughstalk, Ryegrass, Sedge, Sedges, Serviceberry, Shepard's-purse, Shore, Spirea, Variegated, Velvet, Viburnum, Weigela, White, Wild, Winter, Wintercreeper, and Yellow.
Application EquipmentBackpack Sprayer, Pump Sprayer
Application MethodsBroadcast Spray, Spot Treatment
Active IngredientSulfosulfuron 75%
Product TypeHerbicide
FormulationWater Dispersible Granule (WDG)
Application RateYou will mix 1-2.5 scoops of Certainty Herbicide per gallon of Water. Please refer to the label for more specific application rates.
Shelf LifeCertainty Herbicide has a shelf life of 3 years if stored in a cool dry environment.
YieldEach 1.25 oz bottle of Certainty Turf Herbicide will treat anywhere from 10,000 sq. ft.up to 35,000 sq. ft. depending upon the application used.
Use SitesOutdoors
Time to KillCertainty Herbicide is absorbed by both the roots and the foliage of plants and rapidly inhibits the growth of susceptible weeds. Susceptible weed growth stops within 24 hours of treatment even though visual symptoms are slow to develop. Susceptible weeds usually show yellowing or browning within 2 to 3 weeks. Warm, moist conditions following application will speed up the effects of the herbicide. Cold, dry conditions will delay effects. Weeds stressed by drought are less susceptible to this product.
Comparable ProductsImage Herbicide, Sedgehammer
Incompatible Grass Types St Augustine, Zoysiagrass
EPA Registration #524-534
4.8/5
Based on 5 reviews
  • 80%(4)
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100%
7/18/22
Border Bounce
Verified Buyer
Very Satisfied!
I followed the directions on the Solutions website to eliminate the quack grass on my lawn and after the first application the quack grass has turned brown and it looks like it is dying! I think I will apply a second spray after 4 weeks just to make I’ve got all the roots. Very happy with the product so far! Expensive but worth it
80%
7/14/21
Daniel Ahal
Verified Buyer
Seems to be working on QUACK GRASS
This year for some reason, we have a problem with quack grass. We thought it was crab grass and did some research and found it is an entirely different weed and cannot easily gotten rid of. A landscaper recommended this product and after reading a lot of reviews thought we'd give it a try. Most reviews said it took a while to see any results. We spot treated using the wicking method and it's only been 2 weeks, and the quack grass we had is turning brown and looks like it's slowly dying. We'll probably give it another treatment in a couple of weeks just to be sure. It doesn't seem to be a problem with our regular grass. Product is on the pricey side and the bottle you get is REALLY small but you only need a tiny bit with a gallon of water. Would highly recommend. I'll try to update this review in a month to give progress report. We purchased a wicking stick on Amazon but product says you can use a sprayer.
100%
5/7/21
STEPHEN JENKINS
Verified Buyer
IT WORKS!
To be honest i bought this giving it slim chance of actually working, but to my pleasant surprise it worked exacltly as described. Its expensive but you use so little of it a time that it's actually a pretty good value.
100%
12/1/20
Ian M.
Verified Buyer
Awesome results
I have been struggling with Kyllinga growing on my lawn so I went out and bought Certainty from Solutions Pest & Lawn. It shipped to me quickly, I mixed and applied and the Kyllinga is already 90% dead. Well worth the money!
100%
4/10/18
Bryan C.
Verified Buyer
Real value
Super easy to store, mix and apply with no mess. Ideal to control so many weeds in bermuda and saint augustine lawns, especially when temperatures climb in May and early June.
More Information
Restricted Use No
Shipping Restrictions AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT, WA
Availability Online
Signal Word CAUTION
Keith's Pro Tip "Spray Certainty Turf Herbicide early in the morning and scan the yard to focus treatments on weed hot spots rather than doing a full broadcast spraying to reduce wasting product.."
Target Pests Multi Annual Sedge, Bulbous Bluegrass, Buttercup, Carolina Geranium, Catchweed Bedstraw, Common Chickweed, Crowfootgrass, Dandelion, Dollarweed, False Green Kyllinga, Field Pennycress, Fragrant Kyllinga, Globe Sedge, Green Kylinga, Henbit, Johnsongrass, Lawn Burweed, Lawn Pennywort, Little Barley, Perennial Ryegrass, Purple Nutsedge, Quackgrass, Roughstalk Bluegrass, Shepherdspurse, Tall Fescue, White Clover, Wild Garlic, Wild Mustard, Yellow_Nutsedge, Ground Ivy
Time to Kill Certainty Herbicide is absorbed by both the roots and the foliage of plants and rapidly inhibits the growth of susceptible weeds. Susceptible weed growth stops within 24 hours of treatment even though visual symptoms are slow to develop. Susceptible weeds usually show yellowing or browning within 2 to 3 weeks. Warm, moist conditions following application will speed up the effects of the herbicide. Cold, dry conditions will delay effects. Weeds stressed by drought are less susceptible to this product.
Chemical Type Herbicide
Formulation Water Dispersible Granule (WDG)
Application Methods Broadcast Spray, Spot Treatment
Product Drawbacks Certainty Herbicide may require repeated agitation while spraying.
Active Ingredient Sulfosulfuron 75%
Application Equipment Backpack Sprayer, Pump Sprayer
Mix Rate You will mix 1-2.5 scoops of Certainty Herbicide per gallon of Water. Please refer to the label for more specific application rates.
Low Use Rate 0.017 oz./1,000 sq. ft.
High Use Rate 0.060 oz./1,000 sq. ft.
Use Sites Outdoors
Yield Each 1.25 oz bottle of Certainty Turf Herbicide will treat anywhere from 10,000 sq. ft.up to 35,000 sq. ft. depending upon the application used.
EPA Registration No. 524-534
Shelf Life Certainty Herbicide has a shelf life of 3 years if stored in a cool dry environment.
Comparable Products Image Herbicide, Sedgehammer
Children or pets? No
Property Characteristics None
Questions and Answers
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  1. Q:Is this safe on around pets?
    6/5/23
    A:Certainty Turf Herbicide is safe to use around children and kids when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when handling or applying this product. Keep people and pets off treated areas until spray solution has dried.

    Amanda Chavez

    6/5/23
    Certified Buyer
  2. Q:I have a bahia grass lawn but I noticed I have a lot of dallisgrass which I originally thought was bahiagrass seed heads. Will this herbicide kill dallisgrass but not my bahiagrass? Please your thoughts. Thank you.
    6/1/23
    A:Certainty Turf Herbicide will kill dallisgrass on your Bahiagrass. This product is safe to use on your Bahiagrass when applied according to the product label instructions, but there may be a temporary yellow discoloration that will eventually fade away.

    Amanda Chavez

    6/2/23
    Certified Buyer
  3. Q:Live in TX and I want to use on my st augustine. Is it safe to use it?
    5/6/23
    A:Certainty Turf Herbicide has been shown to be safe for use on established warm-seasoned turfgrasses such as St. Augustinegrass. St. Augustinegrass may be more sensitive to this product than other grasses depending on environmental conditions, cultivar differences, and other influential factors. For St. Augustinegrass, test the product on a small area before treating the entire lawn to determine if this product is suitable for your management and cultural practices.

    Amanda Chavez

    5/8/23
    Certified Buyer
  4. Q:Lost my scoop, how much do I mis to a 2 gal sorayer? Also, is it best to spray in the morning? Lastly, will it kill plants and shrubs if accidentally sprayed? please help!!
    3/7/23
    A:If you are using a 2 gallon sprayer, then you will want to use 0.75 oz. of Certainty Turf Herbicide per 2 gallons of water per 1,000 sq. ft. for smaller treatment areas. This product can be sprayed in the morning, but best results are obtained when target weeds are actively growing and not disturbed by mowing for at least 2 days before and 2 days after application. Also, spray when rainfall or irrigation is not predicted within 2 hours after application. This product is highly toxic to non-target plants. Avoid contact of this product with the roots or foliage of susceptible non-target vegetation as injury may occur. This includes areas where this product may be washed or moved into contact with roots of desirable vegetation. It should only be used over the top of warm-seasoned turfgrass and on weeds in labeled ornamental sites. Refer to page 4 of the product label as it lists all ornamentals this product can be used with.

    Amanda Chavez

    3/8/23
    Certified Buyer
  5. Q:It is successful with quack grass and can it be used with northern area grasses like kentucky blue and rye grass? When is the best time to spray on quack grass?
    10/11/22
    A:Certainty Turf Herbicide will get rid of quackgrass, but it cannot be used on Kentucky Bluegrass nor other cool season turfs such as perennial rye.

    Amanda Chavez

    10/11/22
    Certified Buyer
  6. Q:how long is Certainty in Tank sprayer viable/usable AFTER mixing with water and surfacant?
    8/21/22
    A:Dependent on heat and cold couple of weeks most it will lose its effects over time

    Jeremy Luckinbill

    8/22/22
    Certified Buyer
  7. Q:I'm looking to remove Kentucky Bluegrass from a Bentgrass turf, I know this will work on the KBG but is this safe to use on Bentgrass?
    7/8/22
    A:Certainty Turf Herbicide cannot be applied to bentgrass.

    Amanda Chavez

    7/8/22
    Certified Buyer
  8. Q:Tank Mix combination- Sethoxydim and Sulfosulfuron? I need to kill the bermuda grass, POA and crabgrass my pre-emergent missed (Podiamine+Tenacity) in my centipede lawn along with a lot of Purple Netsedge (aka, The Anti-Christ). I would like to mix Certainty and Bonide over the top grass killer (Seulfosulfuron and Sethoxydim), but am concerned about how much to use and if I can. Also need to know if I should use MethSeed Oil or a regular Non-Ionic surfactant if I can mix them. Help! If these cannot be mixed, do you know of another combination that will help? If I can't mix them, how long do I have to wait between applications if I need to lay down both separately?
    5/27/22
    A:You will not be able to kill the bermuda in the Centipede grass without killing both. The certainty is good for the purple nutsedge and the Poa. Do not use MSO on turf applications. That is really only good for non-selective vegetation control. Instead use Alligare 90 or another Non-Ionic surfactant. As far as the crabgrass is concerned, the Sethoxydim will only kill the crabgrass up to the 3-4 tillar stage of the plant's life, after that it has little effect on the more mature plant. I would do separate apps with these as there are no labeled recommendations on combined use for these. 3-4 weeks apart should be a good time interval for the follow up applications. Mow your centipede grass as tall as you can tolerate it to help shade out and better compete with the undesirable bermuda. The bermuda won't like that, and will not spread and propagate as much in these conditions.

    Amanda Chavez

    5/31/22
    Certified Buyer
  9. Q:Will certainty kill kentucky bluegrass in my fescue lawn without killing the fescue?
    4/28/22
    A:Certainty Turf Herbicide is labeled to kill both bluegrass and fescue.

    Amanda Chavez

    4/29/22
    Certified Buyer
  10. Q:I’m confused by the scoop. Do I mix a small scoop or a large scoop for a gallon?
    1/19/22
    A:You will need to use the large scoop for a gallon.

    Amanda Chavez

    1/20/22
    Certified Buyer
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